PIC18F2331_07 Datasheet, PDF (130/400 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with nanoWatt Technology, High Performance PWM and A/D

PIC18F2331/2431/4331/4431
FIGURE 10-24: BLOCK DIAGRAM OF RD3
I²C™ Mode
PORT/SSPEN & SSPMX Select
SCK/SCL Data Out
0
VDD
P
1
RD LATD
Data Bus
WR LATD
or PORTD
D
Q
CK Q
Data Latch
N
D
Q
VSS
WR TRISD
CK Q
TRIS Latch
RD3 Pin
RD TRISD
Q
D
Schmitt
Trigger
SSPMX⁽¹⁾
EN
RD PORTD
SCK or SCL Input
Note 1: SCK/SCL are multiplexed on RD3 and RC5 using the SSPMX bit in the Configuration register.
FIGURE 10-25: BLOCK DIAGRAM OF RD2
PORT/SSP Mode & SSPMX Select
SDA Data Out
0
VDD
P
RD LATD
1
Data Bus
WR LATD
or PORTD
D
Q
CK Q
RD2 Pin
Data Latch
N
D
Q
VSS
WR TRISD
CK Q
TRIS Latch
SDA Drive
RD TRISD
RD PORTD
SDI/SDA Input
Q
D
EN
Schmitt
Trigger
SSPMX⁽¹⁾
Note 1: The SDI/SDA bits are multiplexed on RD2 and RC4 pins by the SSPMX bit in the Configuration register.
DS39616C-page 128
Preliminary
© 2007 Microchip Technology Inc.